Inform user that hardcoded default settings were loaded (EEPROM version change)

Firmware/ConfigurationStore.cpp

@@ -47,7 +47,7 @@ void _EEPROM_readData(int &pos, uint8_t* value, uint8_t size)
 // wrong data being written to the variables.
 // ALSO:  always make sure the variables in the Store and retrieve sections are in the same order.
 
-#define EEPROM_VERSION "V1"
+#define EEPROM_VERSION "V2"
 
 #ifdef EEPROM_SETTINGS
 void Config_StoreSettings(uint16_t offset, uint8_t level) 
@@ -285,9 +285,10 @@ void Config_PrintSettings(uint8_t level)
 
 
 #ifdef EEPROM_SETTINGS
-void Config_RetrieveSettings(uint16_t offset, uint8_t level)
+bool Config_RetrieveSettings(uint16_t offset, uint8_t level)
 {
     int i=offset;
+	bool previous_settings_retrieved = true;
     char stored_ver[4];
     char ver[4]=EEPROM_VERSION;
     EEPROM_READ_VAR(i,stored_ver); //read stored version
@@ -386,10 +387,18 @@ void Config_RetrieveSettings(uint16_t offset, uint8_t level)
     else
     {
         Config_ResetDefault();
+		//Return false to inform user that eeprom version was changed and firmware is using default hardcoded settings now.
+		//In case that storing to eeprom was not used yet, do not inform user that hardcoded settings are used.
+		if (eeprom_read_byte((uint8_t *)offset) != 0xFF ||
+			eeprom_read_byte((uint8_t *)offset + 1) != 0xFF ||
+			eeprom_read_byte((uint8_t *)offset + 2) != 0xFF) {
+			previous_settings_retrieved = false;
+		}
     }
     #ifdef EEPROM_CHITCHAT
       Config_PrintSettings();
     #endif
+	return previous_settings_retrieved;
 }
 #endif
 

Firmware/ConfigurationStore.h

@@ -14,7 +14,7 @@ FORCE_INLINE void Config_PrintSettings() {}
 
 #ifdef EEPROM_SETTINGS
 void Config_StoreSettings(uint16_t offset, uint8_t level = 0);
-void Config_RetrieveSettings(uint16_t offset, uint8_t level = 0);
+bool Config_RetrieveSettings(uint16_t offset, uint8_t level = 0);
 #else
 FORCE_INLINE void Config_StoreSettings() {}
 FORCE_INLINE void Config_RetrieveSettings() { Config_ResetDefault(); Config_PrintSettings(); }

Firmware/Marlin_main.cpp

@@ -991,7 +991,7 @@ void setup()
 	SERIAL_ECHOLN((int)sizeof(block_t)*BLOCK_BUFFER_SIZE);
 	//lcd_update_enable(false); // why do we need this?? - andre
 	// loads data from EEPROM if available else uses defaults (and resets step acceleration rate)
-	Config_RetrieveSettings(EEPROM_OFFSET);
+	bool previous_settings_retrieved = Config_RetrieveSettings(EEPROM_OFFSET);
 	SdFatUtil::set_stack_guard(); //writes magic number at the end of static variables to protect against overwriting static memory by stack
 
 	tp_init();    // Initialize temperature loop
@@ -1151,6 +1151,8 @@ void setup()
 
   show_fw_version_warnings();
 
+  if (!previous_settings_retrieved) lcd_show_fullscreen_message_and_wait_P(MSG_DEFAULT_SETTINGS_LOADED); //if EEPROM version was changed, inform user that default setting were loaded
+
   if (eeprom_read_byte((uint8_t*)EEPROM_WIZARD_ACTIVE) == 1) {
 	  lcd_wizard(0);
   }

Firmware/language_all.cpp

@@ -479,8 +479,10 @@ const char * const MSG_DATE_LANG_TABLE[LANG_NUM] PROGMEM = {
 };
 
 const char MSG_DEFAULT_SETTINGS_LOADED_EN[] PROGMEM = "Default settings loaded";
-const char * const MSG_DEFAULT_SETTINGS_LOADED_LANG_TABLE[1] PROGMEM = {
-	MSG_DEFAULT_SETTINGS_LOADED_EN
+const char MSG_DEFAULT_SETTINGS_LOADED_CZ[] PROGMEM = "Nahrano vychozi nastaveni";
+const char * const MSG_DEFAULT_SETTINGS_LOADED_LANG_TABLE[LANG_NUM] PROGMEM = {
+	MSG_DEFAULT_SETTINGS_LOADED_EN,
+	MSG_DEFAULT_SETTINGS_LOADED_CZ
 };
 
 const char MSG_DISABLE_STEPPERS_EN[] PROGMEM = "Disable steppers";

Firmware/language_all.h

@@ -168,8 +168,8 @@ extern const char* const MSG_CURRENT_LANG_TABLE[LANG_NUM];
 #define MSG_CURRENT LANG_TABLE_SELECT(MSG_CURRENT_LANG_TABLE)
 extern const char* const MSG_DATE_LANG_TABLE[LANG_NUM];
 #define MSG_DATE LANG_TABLE_SELECT(MSG_DATE_LANG_TABLE)
-extern const char* const MSG_DEFAULT_SETTINGS_LOADED_LANG_TABLE[1];
-#define MSG_DEFAULT_SETTINGS_LOADED LANG_TABLE_SELECT_EXPLICIT(MSG_DEFAULT_SETTINGS_LOADED_LANG_TABLE, 0)
+extern const char* const MSG_DEFAULT_SETTINGS_LOADED_LANG_TABLE[LANG_NUM];
+#define MSG_DEFAULT_SETTINGS_LOADED LANG_TABLE_SELECT(MSG_DEFAULT_SETTINGS_LOADED_LANG_TABLE)
 extern const char* const MSG_DISABLE_STEPPERS_LANG_TABLE[LANG_NUM];
 #define MSG_DISABLE_STEPPERS LANG_TABLE_SELECT(MSG_DISABLE_STEPPERS_LANG_TABLE)
 extern const char* const MSG_DWELL_LANG_TABLE[1];

Firmware/language_cz.h

@@ -375,6 +375,7 @@
 #define MSG_CHECK_IDLER						"Prosim otevrete idler a manualne odstrante filament."
 #define MSG_FILE_INCOMPLETE					"Soubor nekompletni. Pokracovat?"
 #define MSG_FILE_CNT						"Nektere soubory nebudou setrideny. Maximalni pocet souboru pro setrideni je 100."
+#define MSG_DEFAULT_SETTINGS_LOADED			"Nahrano vychozi nastaveni"
 #define MSG_SORT_TIME						"Trideni     [Cas]"
 #define MSG_SORT_ALPHA						"Trideni [Abeceda]"
 #define MSG_SORT_NONE						"Trideni   [Zadne]"